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| Patents for J. P. Holingsworth | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,266,350 | May 14, 1918 | G.L. Timpano | Stone Sawing Machine | stone cutting machines | |
| 1,269,727 | Jun. 18, 1918 | A.E. Metz | Milling Machine | milling machines | |